Bicycle frame



FIG. 1 is a perspective view of the bicycle frame from the left.

FIG. 2 is a perspective view of the bicycle frame from above.

FIG. 3 is the right side elevational view of the bicycle frame.

FIG. 4 is the front elevational view of the bicycle frame.

FIG. 5 is the left side elevational view of the bicycle frame.

FIG. 6 is the rear elevational view of the bicycle frame.

FIG. 7 is a top plan view of the bicycle frame; and,

FIG. 8 is a bottom plan view of the bicycle frame.

The broken lines illustrate unclaimed structure. 

We claim the ornamental design for the bicycle frame, as shown and described. 